公开(公告)号：US10315012B2

公开(公告)日：2019-06-11

申请号：US14889101

申请日：2014-05-06

申请人： FORT WAYNE METALS RESEARCH PRODUCTS CORPORATION

发明人： Jeremy E. Schaffer

IPC分类号： A61L31/02 ,  A61L31/14 ,  C22C14/00 ,  C22C30/00 ,  A61M25/09 ,  C21D8/06 ,  A61F2/86 ,  C21D1/26 ,  C21D9/52 ,  C22F1/00 ,  C22F1/18

摘要： Ti—Nb—Hf/Zr—(Cr) alloy shape-memory wires are provided which are suitable for use in medical devices and actuators, and methods for manufacturing such wires are provided. The present shape-memory Ti—Nb—Hf/Zr—(Cr) alloy is a superelastic wire material particularly suited for in vivo applications. For example, the present Ti—Nb—Hf/Zr—(Cr) alloy wire is radiopaque, thereby enabling surgical use of a monolithic, shape-memory alloy wire while preserving the ability to monitor the in vivo location of the wire through X-ray or other radiation-based imaging systems. In addition, the present Ti—Nb—Hf/Zr—(Cr) alloy can be manufactured to exhibit shape-memory alloy material properties without the use of nickel as an alloy constituent, thereby accommodating nickel-sensitive patients. The present Ti—Nb—Hf/Zr—(Cr) alloy can also be processed to exhibit a martensite/austenite transformation temperature near body-temperature, i.e., 37° C., so that shape-memory effects can be utilized to accomplish work in vivo.

公开(公告)号：US20190142615A1

公开(公告)日：2019-05-16

申请号：US16243735

申请日：2019-01-09

申请人： M.I.TECH CO., LTD.

发明人： Jong Hyeon HAN ,  Hun Kuk PARK ,  Bong Seok JANG ,  Ho YUN

IPC分类号： A61F2/86 ,  A61F2/07 ,  A61L31/02 ,  A61F2/90 ,  A61L27/34 ,  A61L31/14 ,  A61L31/10

摘要： The present invention relates to a stent and a method for manufacturing the same. The stent includes: a first hollow cylindrical body portion formed by weaving a metal wire; a second hollow cylindrical body portion formed by weaving a metal wire, and configured to surround the first body portion; an expanded portion configured to form two adjacent ends of the first body portion and the second body portion integrally; and a membrane inserted between the first body portion and the second body portion, and configured to surround the outside of the first body portion. According to the present invention, there is no risk of the film being torn when the stent is bent, an additional connection wire is not required, the process of manufacturing the stent is simple, and the costs required for the manufacture of the stent are not high.

公开(公告)号：US10271972B2

公开(公告)日：2019-04-30

申请号：US14668179

申请日：2015-03-25

申请人： Boston Scientific Scimed Inc.

发明人： Ismail Guler ,  Allan Charles Shuros ,  Eric A. Mokelke ,  Adam David Grovender ,  Joel P. Grover ,  Timothy Lawrence Rubesch

IPC分类号： A61F2/848 ,  A61F2/82 ,  B32B37/12 ,  B32B37/24 ,  A61F2/00 ,  A61F2/86 ,  A61F2/07 ,  A61F2/90

摘要： An endoprosthesis includes a stent having an inner surface defining a lumen and an outer surface; and a polymeric cover on the outer surface of the stent. The polymeric cover includes a base and adhesion elements. When the endoprosthesis is expanded to the expanded state in a lumen defined by a vessel wall, the adhesion elements create an interlock between the vessel wall and the endoprosthesis.

公开(公告)号：US20190117423A1

公开(公告)日：2019-04-25

申请号：US16218007

申请日：2018-12-12

申请人： Tiffany E. CHAO ,  Nicholas R. DAMIANO ,  Shreya MEHTA ,  John P. WOOCK

发明人： Tiffany E. CHAO ,  Nicholas R. DAMIANO ,  Shreya MEHTA ,  John P. WOOCK

IPC分类号： A61F2/89 ,  A61F2/86 ,  A61F2/04 ,  A61F2/848

摘要： Indwelling body lumen expanders which allow for the maintenance and patency of a body lumen, such as the prostatic urethra to relieve urethral obstruction, are described. Because the one or more expanders are configured to be relatively larger in diameter than the diameter of the body lumen, the expanders may become invaginated into the lumen wall thus enabling the prostheses to avoid fluid exposure which in turn prevent the prostheses from becoming encrusted or calcified.

公开(公告)号：US10265207B2

公开(公告)日：2019-04-23

申请号：US14040516

申请日：2013-09-27

申请人： Covidien LP

发明人： Hieu Luong ,  Garrett Johnson ,  Aaron Barrett ,  Gabriel Newell ,  Andy Huynh ,  Lawrence Farhat

IPC分类号： A61F2/958 ,  A61F2/962 ,  A61F2/95 ,  A61F2/97 ,  A61M25/00 ,  A61F2/82 ,  A61F2/86 ,  A61F2/92 ,  A61F2/90

摘要： A stent delivery system can include a core member, a stent, and a stent engagement member. The engagement member can be positioned along a distal segment of the core member and be coupled to the core member. The engagement member can have an outer surface. The stent can extending along the core member distal segment such that the outer surface of the engagement member engages an inner surface of the stent along at least a portion of only a distal half of the stent for transmitting an axial force from the core member to only the stent distal half of the stent.

公开(公告)号：US10265204B2

公开(公告)日：2019-04-23

申请号：US15507945

申请日：2015-08-31

申请人： JMS CO., LTD.

发明人： Junichi Ide ,  Takashi Yamamoto ,  Shuji Fukutaki ,  Yuka Yamashina

IPC分类号： A61F2/95 ,  A61F2/90 ,  A61F2/86 ,  A61F2/966 ,  A61L31/06 ,  A61L31/14

摘要： Provided is a synthetic resin stent that has resistance to pressure externally applied from the radial direction while in an enlarged diameter state even when the synthetic resin fibers are thin. The synthetic resin stent comprises: a stent main section that is formed by synthetic resin fibers into a cylinder and that can deform from a reduced diameter state to an enlarged diameter state; and a restricting mechanism that keeps the stent main section in the enlarged diameter state by restricting the stent main section from reducing in diameter when in the enlarged diameter state. The synthetic resin stent preferably further comprises a diameter enlarging mechanism that is connected to the stent main section and that deforms the stent main section from a reduced diameter state to an enlarged diameter state.

公开(公告)号：US20190000619A1

公开(公告)日：2019-01-03

申请号：US16115428

申请日：2018-08-28

申请人： Navigate Cardiac Structures, Inc.

发明人： Rodolfo C. Quijano ,  Jason K. Clark

IPC分类号： A61F2/24 ,  A61F2/86 ,  A61F2/844 ,  A61F2/966

摘要： The present invention is a replacement mitral valve suitable for catheter-based deployment. The replacement mitral valve has structure and dimensions that are uniquely suited to engage the annulus surrounding the native mitral valve and to restore normal function to a diseased valve. The invention describes the structures and functions of a replacement mitral valve and methods that are adapted for minimally invasive, catheter-based deployment of the valve.

公开(公告)号：US20180353312A1

公开(公告)日：2018-12-13

申请号：US16007170

申请日：2018-06-13

申请人： BOSTON SCIENTIFIC SCIMED, INC.

发明人： David Robert Wulfman ,  Matthew Nelson Frost ,  Pieter Spitael ,  Thomas Martin Keating ,  Martyn G. Folan ,  Martin Hynes ,  Christopher Brian Rognrud ,  Matthew Boyer

IPC分类号： A61F2/966 ,  A61F2/86

CPC分类号： A61F2/966 ,  A61F2/86 ,  A61F2210/0004 ,  A61F2210/0014 ,  A61F2250/0098 ,  A61M25/0662 ,  A61M2025/0024

摘要： An example introducer is disclosed. An example introducer sheath includes a tubular member including a first layer and a second layer and a stent disposed between the first layer and the second layer of the tubular member. The stent includes an outer surface and an inner surface. Additionally, the stent is configured to shift from a first configuration to a second expanded configuration and the outer surface of the stent contacts the first layer of the tubular member in the second expanded configuration.

公开(公告)号：US10149692B2

公开(公告)日：2018-12-11

申请号：US15238439

申请日：2016-08-16

申请人： Cognition Medical Corp.

发明人： Alexis Turjman ,  Jonah Bernstein

IPC分类号： A61B17/221 ,  A61F2/86 ,  A61F2/966 ,  A61B17/12 ,  A61B17/3207 ,  A61F2/82 ,  A61F2/95 ,  A61M25/00 ,  A61F2/844 ,  A61F2/962 ,  A61B17/22

摘要： New devices, systems, and methods are disclosed for preventing, treating, and/or at least minimizing ischemia and/or reperfusion injury by restoring and/or modulating blood flow, particularly in the cerebral vasculature where blood vessels are narrow and tortuous. These devices, systems, and methods make it possible for a clinician to adequately and systematically restore blood flow to ischemic tissue while simultaneously modulating the blood flow to minimize reperfusion injury. New thrombectomy devices and systems, which, for example, expand with greater radial force, further enable improved binding with clots and restoration of blood flow.

公开(公告)号：US10136992B2

公开(公告)日：2018-11-27

申请号：US14745840

申请日：2015-06-22

申请人： St. Jude Medical, Cardiology Division, Inc.

发明人： Julia A. Schraut ,  Peter N. Braido ,  Ramji T. Venkatasubramanian ,  Aditee Kurane ,  Mina S. Fahim ,  Jaishankar Kutty

IPC分类号： A61F2/06 ,  A61F2/24 ,  A61F2/07 ,  A61F2/86

摘要： A prosthetic heart valve includes a collapsible and expandable stent having a proximal end, a distal end, an annulus section adjacent the proximal end and an aortic section adjacent the distal end, the stent including a plurality of struts. The heart valve further includes a collapsible and expandable valve assembly including a cuff and a plurality of leaflets, the cuff being coupled to selected ones of the plurality of struts and having microspheres disposed therein. The microspheres are capable of expanding upon contact with blood.